Not financial advice. ThetaGrade is educational and informational only. Nothing here is a recommendation to buy or sell any security, and it is not tailored to anyone. Options involve substantial risk; read the OCC Characteristics and Risks of Standardized Options. Past performance does not guarantee future results. Methodology

BIIB government trades

Biogen Inc. - Common Stock. 6 officials filed trades since 2025. BIIB rating

Trades are filed weeks after they happen and amounts are reported as ranges. Educational, not financial advice.

Who traded it

Official	Branch	Buys	Sells	First trade	Latest trade	Latest filing
Maria Elvira Salazar R-FL	House	3	2	2026-05-11	2026-09-24	2026-10-07
Kevin Hern R-OK	House	0	1	2026-08-18	2026-08-18	2026-09-01
Donald J Trump	Executive	1	2	2026-04-10	2026-06-12	2026-08-22
Alan Armstrong R-OK	Senate	1	0	2026-03-27	2026-03-27	2026-07-21
Gilbert Ray Cisneros, Jr. D-CA	House	2	0	2026-01-30	2026-06-05	2026-07-02
Robert P. Bresnahan, Jr. R-PA	House	2	1	2025-02-25	2025-05-15	2025-06-09

Every BIIB trade

Traded	Filed	Days	Official	Stock	Type	Amount	Owner
2026-09-24	2026-10-07	13	Maria Elvira Salazar	BIIB Biogen Inc. - Common Stock	Partial sell	$1K–$15K	Self	Filing ↗
2026-08-18	2026-09-01	14	Kevin Hern	BIIB Biogen Inc. - Common Stock	Sell	$1K–$15K	Self	Filing ↗
2026-06-12	2026-08-22	71	Donald J Trump	BIIB BIOGEN INC	Sell	$1K–$15K		Filing ↗
2026-03-27	2026-07-21	116	Alan Armstrong	BIIB Biogen Inc. - Common Stock	BuyOpen	$1K–$15K	Self	Filing ↗
2026-06-02	2026-07-07	35	Maria Elvira Salazar	BIIB Biogen Inc. - Common Stock	Sell	$15K–$50K	Self	Filing ↗
2026-06-05	2026-07-02	27	Gilbert Ray Cisneros, Jr.	BIIB Biogen Inc. - Common Stock	BuyOpen	$1K–$15K	Self	Filing ↗
2026-04-15	2026-07-01	77	Donald J Trump	BIIB BIOGEN INC	BuySold	$1K–$15K		Filing ↗
2026-04-10	2026-07-01	82	Donald J Trump	BIIB BIOGEN INC	Sell	$1K–$15K		Filing ↗
2026-05-12	2026-06-08	27	Maria Elvira Salazar	BIIB Biogen Inc. - Common Stock	BuySold	$1K–$15K	Self	Filing ↗
2026-05-11	2026-06-08	28	Maria Elvira Salazar	BIIB Biogen Inc. - Common Stock	BuySold	$1K–$15K	Self	Filing ↗
2026-05-11	2026-06-08	28	Maria Elvira Salazar	BIIB Biogen Inc. - Common Stock	BuySold	$50K–$100K	Self	Filing ↗
2026-01-30	2026-02-13	14	Gilbert Ray Cisneros, Jr.	BIIB Biogen Inc. - Common Stock	BuyOpen	$1K–$15K	Self	Filing ↗
2025-05-15	2025-06-09	25	Robert P. Bresnahan, Jr.	BIIB Biogen Inc. - Common Stock	BuyOpen	$1K–$15K	Self	Filing ↗
2025-04-08	2025-05-08	30	Robert P. Bresnahan, Jr.	BIIB Biogen Inc. - Common Stock	Sell	$1K–$15K	Self	Filing ↗
2025-02-25	2025-03-27	30	Robert P. Bresnahan, Jr.	BIIB Biogen Inc. - Common Stock	BuySold	$1K–$15K	Self	Filing ↗

BIIB Biogen Inc. - Common Stock
Partial sell
Maria Elvira Salazar
$1K–$15K · Self · traded 2026-09-24 · filed 2026-10-07 (13d) · Filing ↗
BIIB Biogen Inc. - Common Stock
Sell
Kevin Hern
$1K–$15K · Self · traded 2026-08-18 · filed 2026-09-01 (14d) · Filing ↗
BIIB BIOGEN INC
Sell
Donald J Trump
$1K–$15K · traded 2026-06-12 · filed 2026-08-22 (71d) · Filing ↗
BIIB Biogen Inc. - Common Stock
OpenBuy
Alan Armstrong
$1K–$15K · Self · traded 2026-03-27 · filed 2026-07-21 (116d) · Filing ↗
BIIB Biogen Inc. - Common Stock
Sell
Maria Elvira Salazar
$15K–$50K · Self · traded 2026-06-02 · filed 2026-07-07 (35d) · Filing ↗
BIIB Biogen Inc. - Common Stock
OpenBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2026-06-05 · filed 2026-07-02 (27d) · Filing ↗
BIIB BIOGEN INC
SoldBuy
Donald J Trump
$1K–$15K · traded 2026-04-15 · filed 2026-07-01 (77d) · Filing ↗
BIIB BIOGEN INC
Sell
Donald J Trump
$1K–$15K · traded 2026-04-10 · filed 2026-07-01 (82d) · Filing ↗
BIIB Biogen Inc. - Common Stock
SoldBuy
Maria Elvira Salazar
$1K–$15K · Self · traded 2026-05-12 · filed 2026-06-08 (27d) · Filing ↗
BIIB Biogen Inc. - Common Stock
SoldBuy
Maria Elvira Salazar
$1K–$15K · Self · traded 2026-05-11 · filed 2026-06-08 (28d) · Filing ↗
BIIB Biogen Inc. - Common Stock
SoldBuy
Maria Elvira Salazar
$50K–$100K · Self · traded 2026-05-11 · filed 2026-06-08 (28d) · Filing ↗
BIIB Biogen Inc. - Common Stock
OpenBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2026-01-30 · filed 2026-02-13 (14d) · Filing ↗
BIIB Biogen Inc. - Common Stock
OpenBuy
Robert P. Bresnahan, Jr.
$1K–$15K · Self · traded 2025-05-15 · filed 2025-06-09 (25d) · Filing ↗
BIIB Biogen Inc. - Common Stock
Sell
Robert P. Bresnahan, Jr.
$1K–$15K · Self · traded 2025-04-08 · filed 2025-05-08 (30d) · Filing ↗
BIIB Biogen Inc. - Common Stock
SoldBuy
Robert P. Bresnahan, Jr.
$1K–$15K · Self · traded 2025-02-25 · filed 2025-03-27 (30d) · Filing ↗

15 trades